* ''WesternAnimation/{{Thundercats 2011}}'' gets growls (pun intended) from the older fanbase due to the art style, storyline, and character plot changes, all of which has been accused of being too 'generic anime-like'. For example: Snarf has been accused of turning into a cliche cute pet sidekick that doesn't speak and is just there to be the team's mascot (never mind that the original Snarf [[TheScrappy wasn't very well-liked]]), Tygra is accused of being turned into Lion-O's rival/borderline frienemy who just so happens to be interested in the same girl but will come through for him when it 'counts' to show that he 'cares', Lion-O himself is accused of having been turned into the late teen/young brash man that has to 'learn' to believe in himself and his power... Then there's the apparent 'love triangle' between Lion-O, Tygra, and Cheetra which isn't supposedly helping quell said 'anime' notion... and this was all before the show even AIRED!
* Creator/CartoonNetwork. So many people, especially teens who grew up with the channel. Fans tend to have different ideas of when and where the channel went wrong. Popular ideas include:
** Ending of the original Cartoon Cartoons.
** Introduction of live action shows. Justifiable, though. It IS ''Cartoon'' Network.
** Cancellation of Creator/{{Toonami}} (which thankfully [[UnCancelled was receded]] after a four year gap).
** Introduction of one of the following shows: ''WesternAnimation/{{Chowder}}, WesternAnimation/TheMarvelousMisadventuresOfFlapjack, WesternAnimation/AdventureTime, WesternAnimation/RegularShow, WesternAnimation/TheAmazingWorldOfGumball, WesternAnimation/GeneratorRex'', etc. Take your pick.
** Importing Canadian shows like ''WesternAnimation/TotalDrama'', ''WesternAnimation/{{Sixteen}}'', and ''WesternAnimation/{{Stoked}}''. ''Total Drama'' gets various levels of crap, ranging from low amounts from people who thought it was one of the shows that wasn't terrible to high from viewers who didn't get the point and MoralGuardians. And [[CreatorsPet Owen]] haters...
** ''WesternAnimation/{{Sixteen}}'' is another example. Some people hate it, some people love that it has a somewhat more realistic plotline.
** Many Cartoon Cartoons are available on the sister channel Boomerang, but it's not exactly great with availability.
** The Noods (the white characters that got splashed with paint to form a character), especially by fans of the older bumpers.
** The [[http://www.brandingmagazine.com/wp-content/uploads/2011/07/682px-Original_Cartoon_Network_logo.svg_.png classic 1992 logo]] getting changed to [[http://images.wikia.com/cartoonnetwork/images/archive/6/6f/20110908182006!180px-CN_logo.svg.png the 2004 logo]]. It doesn't help that the network around this time was slowly slipping into its DorkAge, so as a result the logo is identified as the first sign of CN's NetworkDecay. The 2010 logo partially averts this - [[http://upload.wikimedia.org/wikipedia/commons/1/1c/Cartoon_Network_logo.svg the standard abbreviated "CN" logo]] looks like a simplified version of the 2004 logo, but [[http://images.wikia.com/cartoonnetwork/images/archive/f/fd/20111231011934!Cartoon_Network_Logo_%28Rebooted_Design%29.jpg an alternate version]] that is sometimes used is otherwise the 1992 logo with different letters. {{Lampshade|Hanging}}d [[BitingTheHandHumor and mocked]] by CN's evening block Creator/AdultSwim [[http://jvartablog.wordpress.com/2013/01/11/cartoon-network-creates-honest-logo-evolution-id/ here]].
** The redesigns in ''WesternAnimation/Ben10Omniverse'', as well as the change of tone.
** The contestants in season 4 of ''WesternAnimation/TotalDrama''.
* Any of the ''Franchise/RoboCop'' cartoons will do. Hell, the second one gets more flak because Murphy simply has more gadgets, and he gets called "[[WesternAnimation/InspectorGadget go go gadget cop]]". That [[FanNickname nickname]] might have less to do with just the gadgets and more to do with one of the most commonly used gadgets was ''extendo-arms'', and that the series liked to find excuses to turn him into an incompetent recipient of goofy slapstick.
* ''Franchise/{{Transformers}}'': TRUKK NOT MUNKY gets use ''every time'' a new series comes out. The Transformers fandom is the trope namer for DarthWiki/RuinedFOREVER with good reason.
** It has gotten this reaction since ''WesternAnimation/BeastWars''. The fandom itself has its own self-deprecating phrase for the trope: "[[http://tfwiki.net/wiki/Trukk_not_munky TRUKK NOT MUNKY]]", regarding the complaints over Optimus Primal being a gorilla, [[ArtisticLicenseBiology which isn't actually a monkey at all]]. The more general term is "[[http://tfwiki.net/wiki/GEEWUN GEEWUN]]".
** We'll never know how the fans' heads ''exploded'' when they first saw the character designs for ''WesternAnimation/TransformersAnimated'', or when they found out it would have ''human'' villains, with the Decepticons being a recurring threat and not the only one, or the fact that Optimus Prime would be voiced by David Kaye (who before has primarily voiced WesternAnimation/BeastWars' Megatron), or that Optimus was a firetruck (until they realized he ''was'' technically a semi-truck ''outfitted'' as a firetruck. Then some were upset that he didn't have smoke stacks...), and let's not forget about Optimus not being the leader of ''all'' the Autobots. There are even people going berserk that the new Soundwave doesn't sound ''exactly'' like the old one (Creator/FrankWelker is expensive nowadays, one presumes). ''Transformers Animated'', however, has managed to convert many of those same naysayers through much story, design, and casting {{Shout Out}}s that show that the writers had indeed ShownTheirWork. Even so, some FanDumb just won't quit.
** ''WesternAnimation/TransformersPrime'' gets a lot of flak from fans who agonize over how the design aesthetic, particularly for the Decepticons, strays too far from the norm (read: G1), instead electing for more of a hybrid movie/''Animated'' look. Starscream and Soundwave are the biggest examples, drawing a lot of complaints about how their [[LeanAndMean ultra-lean]], [[SpikesOfVillainy spiky]] bodies look "anorexic" or something to that effect, never mind that the designs actually complement their personalities quite nicely. Soundwave has it the worst between the two of them, with most folks being ''appalled'' at how he's not the bulky, square-ish bot he was in G1 and ''[[VideoGame/TransformersWarForCybertron War for Cybertron]]''.
* ''WesternAnimation/TheSimpsons'':
** The episode "That 90's Show" is hated by many fans entirely because it was an alternate backstory for Homer and Marge. This despite the fact that the show ''[[NegativeContinuity has never had anything even resembling continuity]]'' and has always operated on a sliding time-scale. What's even more ridiculous is that a lot of ''professional'' reviewers were actually getting away with massive amounts of FanDumb, like [[http://tv.ign.com/articles/847/847940p1.html Robert Canning]] who literally spent four-fifths of the review bitching about this instead of the actual content of the episode, gave it a 3/10, and called it "an abomination". ''Simpsons''' "continuity" is SeriousBusiness. This is a massive exaggeration of the effect, claiming that it {{retcon}}ned away every past event established to have happened. If you accept that the show has a sliding timeline (which it very obviously ''does''), the only thing this changes is that Marge went to college for a short time and Homer formed a band between them graduating and Marge getting pregnant. So it's more along the lines of: "They made their ExpansionPackPast and use of ComicBookTime come with somewhat more obvious {{retcon}}s and they've thus thrown out all other previously established past events, now it sucks".
** The seasons when Mike Scully was show-runner (9-12) are often denounced as a DorkAge for simply being weirder then the most. This also leads some fans to make the ridiculous claim other episodes were "realistic" instead of just not as strange.
** As if people aren't ''already'' displeased with the later seasons... In season 20 the intro was permanently changed for the first time since season 2. It was remade to go along with the show's widescreen HD makeover. The completely newly animated sequence features various minor characters and gags that weren't there before. Some fans hate that.
** Ask in Latin America when the show turned bad. The answer will be when they changed the original voices about 2005. This fact, almost unknown in the rest of the planet, is a universal truth in the subcontinent. While few people know that the decline of quality begun near or even before that point, due to new writers, directors or executive meddling, this is not associated to any other change than the voices that were subtly replaced when Audiomaster 3000 closed their contract. People can't take Otto Valvabuena as Homer, and recognize the real one to be in the voice Humberto Vélez, a well-recognized Mexican voice actor.
* Creator/{{Toonami}} got a ''lot'' of this; fans themselves are a BrokenBase as to whether it sucked when (in Toonami's last change in style) TOM received a childish look and a face instead of a helmet (being a robot, it was assumed to be his whole head), the [=AI=] character [=SARA=] disappeared with no explanation and was replaced with robots similar in design to the new TOM, and the setting was changed to a jungle planet outpost instead of the spaceship Absolution. Of course, there was a similar reaction ''way'' back when after TOM replaced Moltar... And the reboot of Toonami: while many people highly enjoy the new Toonami lineup many seem to think it sucks because it doesn't have nostalgia favorites such as ''Anime/DragonBallZ'', ''Manga/YuYuHakusho'', ''Manga/OutlawStar'', and many others despite the fact that the rights to DBZ are owned by another network and the new Toonami has a limited that doesn't allow them to show every a bunch of stuff from the past along with new programming.
* Because [[Creator/FourKidsEntertainment 4Kids]] redubbed and edited ''WesternAnimation/WinxClub'', it got quite a bit of this reaction from fans. Many fans like to rage at [=4Kids=] for changing the plot or removing scenes even though it isn't always that bad or important. Some changes were more generally preferred, however. On example is the hip-hop music used in the Halloween episode. Another liked change is with Stella, who was a stereotypical blonde bitch in the original, is ''a lot'' nicer and more likeable in the [=4Kids=] version.
** [=4Kids=] has had a ''horrible'' track record of dubbing foreign shows to the point that they become stupid, makes no sense, and leaves plot holes you could drive a truck through (see DubInducedPlotHole). Scenes of character development have been taken out of ''Winx Club'' or developing lines replaced with "funny dialogue" which is usually a string of puns and taking away all the drama. Some personalities were also changed to the extreme, the main one being Layla. Originally, she was a girl with insecurity issues due to her royalty life and wants to have friends, but [=4Kids=] turned her into an extreme feminist who tends to act like a bitch.
** Now that Creator/{{Nickelodeon}} has started airing a [[AdaptationDistillation heavily condensed version]] of the series, fans are complaining that they've removed too much. While that is an understandable complaint, one of the major things that has angered fans is the removal of the "[[SwordOfPlotAdvancement Charm]][[MidSeasonUpgrade ix]]" which after season 2 [[SoLastSeason was never used or mentioned again]].
** There's also the fans who grew up with the 4Kids version who feel this way about the Nick version.
* There exists certain parts of the fandom that are absolutely furious that in ''WesternAnimation/BatmanTheBraveAndTheBold'' Batman's parents died [[spoiler:when he was mad at them over a Christmas present]]. There is also that the humor has devolved to Adam West-era puns, Batman practically having super strength, Batarangs being made of cellophane peeled from his chest logo (???), or that he's voiced by [[WesternAnimation/TheGrimAdventuresOfBillyAndMandy Hoss Delgado]] making him even harder to take seriously. (Of course, this is more about this entire thing being based on the [[TheSilverAgeOfComicBooks Silver Age]].)
* ''WesternAnimation/TheFairlyOddParents'': Fans believe that about seasons 4-7, the introduction of Poof, and the main character's {{Flanderization}} and {{Jerkass}}ness was when this happened.
* ''Family Guy'': The most thunderous complaint about the show since its return to TV was its complete change in tenure and character. The program has dropped its sit-com base and instead goes for violence, grotesque imagery, jokes that go too long, lack of concern between characters, and in-your-eye political and religious commentary.
* Many reacted this way when Mattel announced that they will release tween [[WesternAnimation/DoraTheExplorer Dora]]' to appeal to older girls. Many were expecting a [[Franchise/{{Bratz}} Bratz]]-esque Dora.
* ''WesternAnimation/{{Doug}}'': Fans of the Nickelodeon version were and probably still known to trash the Disney version, because the biggest change made to it was Disney making it now!
** The changes weren't so bad, and the creators made explanations for the changes a part of the script. The show is set one year after the first series, so the characters are a year older, dress differently, have different hairstyles, different voice actors, etc., and the first new episode focused on Doug learning to overcome and deal with his fears of the changes in his life.
* Though ''WesternAnimation/TheSpectacularSpiderMan'' was very well received by comic book fans and others, there are some of the more [[FanDumb militant]] fans of the previous series who do not like the show for things such as the style, Shocker not being Herman Schultz, but Montana of the Enforcers, Venom's design, and probably a bunch of other reasons as well.
* ''WesternAnimation/{{Ultimate Spider-Man}}'' received similar treatment from fans of ''Spectacular'', who speculated that the show's very existence was the reason why ''Spectacular'' was axed in the first place. Once more became known about the series, other fans began complaining about the series not adhering to the [[ComicBook/UltimateSpiderMan comic book of the same name]], as well as allegedly being very [[MerchandiseDriven "toyetic"]].
** Also, Spidey's [[SelfDemonstrating/{{Deadpool}} Deadpool]]-esque personality and humour.
* Complaints were leveled at ''WesternAnimation/GreenLanternTheAnimatedSeries'' for incorporating a lot of the more recent and controversial elements from the Creator/GeoffJohns run (such as the Red and Blue Lanterns and the Star Sapphire Corps) despite starring the original Silver Age GL, Hal Jordan, and not any of the more recent Lanterns like John Stewart, Guy Gardner or Kyle Rayner. Early fan outcry was also leveled at the series for using CGI animation rather than the traditional hand-drawn looks used in most other DC cartoons. And even the fans who liked the elements from Geoff Johns' books have criticized the series for things such as the Red Lanterns not being mindless raging beasts like in the comic.
* ''WesternAnimation/TheLegendOfKorra'' gets this from some fans of the original series who are upset that it has an entirely new cast and takes place several decades after the original ended, instead of directly continuing ''WesternAnimation/AvatarTheLastAirbender''.
* ''WesternAnimation/BewareTheBatman'' was already getting this when there was nothing more than two teaser posters being released, with Alfred using firearms proving to be a particularly controversial element. Additionally, some fans seem to take issue with {{Katana}} being used as Batman's core sidekick when [[Comicbook/{{Batgirl2000}} Cassandra Cain]], the Asian ComicBook/{{Batgirl}}, fills a similar function and has yet to be used in any DC telelvision show beyond a non-speaking cameo in ''WesternAnimation/JusticeLeague''. And of course there are also animation purists who detest the use of CGI.
** And let us not forget the [[WesternAnimation/TheBatman other series]] that referred to him as "the Batman." A combination of having to live up to the Timmverse, character changes, weird designs, and the little matter of the [[ExecutiveMeddling Bat-Embargo]] turned many viewers against it.
* ''WesternAnimation/{{Futurama}}'' had a rumored new voice cast that thankfully [[http://www.escapistmagazine.com/news/view/93577-Futurama-Cast-Inks-New-Deal-with-Fox-Confirmed-to-Return didn't go through]], possibly due to fan reaction. Or maybe because replacing the entire cast would be really messed up.
** The dispute was mostly due to the voice actors' salary demands, with numerous fans afraid and angry at the possibility of change demanding that Fox throw as much money at the actors as was necessary. Because who doesn't want to invest large amounts of cash in a series that had to be UnCancelled?
** Now that the show's back, it's already getting wild accusations (even after the first two episodes of the season!) that the show has officially been ruined just because the jokes have become slightly edgier (the third episode in particular is also getting a lot of this because of all of its topical humor).
* Many people didn't like the idea of ''WesternAnimation/BatmanBeyond'' where Bruce Wayne wasn't the actual Batman. As far as SpinOffspring shows go, this series is easily one of the best examples of it being done right.
* ''WesternAnimation/Ben10AlienForce'' gets this reaction a lot. While the original wasn't a classic, apparently differences in opinion don't apply when it comes to declaring the franchise unsalvageable. Just look at the series page. While some of the criticism are justified, others tends to fall in the FanDumb department.
* ''WesternAnimation/YoungJustice'' initially drew the ire of certain fans of the [[Comicbook/YoungJustice 90's comic book of the same name]]. Despite the fact that the creators said from the beginning that it would only loosely adapt elements from the book and that it would mostly do its own thing, fans still raised a massive stink. It got to the point where PeterDavid, who wrote the original comics, had to step in and tell people to calm down and accept that it was going to be good despite not matching his work. However, now two years into the show, the drama more or less died down.
** There was also backlash over the TimeSkip at the start of season 2, with a number of fans voicing outrage over the mostly-new cast and the apparent jettisoning of many of the originals (such as Aqualad [[FaceHeelTurn becoming a villain]] and Artemis retiring). However a good deal of the controversy died down by episode 7, when at least two of the above-mentioned major complaints were addressed.
* ''WesternAnimation/TheVentureBrothers'' fandom seems to be heading in this direction. The changes made for season 4 are mostly par for the course for a show with so much character development (every season has kicked off with some sort of major change) but Brock Samson's departure from the regular cast has led to a vocal faction of fans declaring that the show is terrible without him. This might end up being a moot issue, though since [[spoiler: Brock may or may not be back following the events of the most recent episode.]]
** To a lesser extent, Hank and Dean's new designs have gotten this sort of reaction as well.
* ''WesternAnimation/StrawberryShortcake'' has been prone to this due to the uncertainty of the direction each of the master licensees want to take the franchise which has angered fans due to its frequent changes. When the 2003 version started, some of the older fans felt that the franchise was doomed. And when the 2003 version was aged-up in 2007, there was trepidation from some (particularly, fans of Honey Pie Pony, who weren't pleased that [[PutOnABus she had retired to Ice Cream Island permanently]], and even then the send-off was only mentioned in a chapter book and not on the TV series officially, and after that the existing fillies, Honey Pie and Ice Cream Island was never mentioned ever again, while others who disliked the Pie-Man voiced their dislikes in the franchise bringing him back). ''Then'' there's the 2009 series, which were widely decried by the Educational TV connisseurs who're drawn to the series by the 2003 series being educationally wholesome as lacking in terms of educational content and emphasis on beauty over moral values, the transition to CGI, as well as being nothing more than a 30-minute toy commercial.
* Franchise/ScoobyDoo:
** ''WesternAnimation/ScoobyDooMysteryIncorporated'' is getting this by a number of fans. Others are accepting the series quite well and chances are it'll be a base breaker.
** ''[[WesternAnimation/WhatsNewScoobyDoo What's New, Scooby-Doo?]]'', got this as well, mostly from fans who preferred the older 1970s series, due to changing the character designs and animation, music and sound effects, trying too hard to make it more "hip" and "current," along with making the show more "realistic" and "down-to-earth," and continuously making fun of the old Scooby-Doo formula to death (including every episode [[YouMeddlingKids parodying the line "And it would've worked if it weren't for you meddling kids!"]] )
** There's also ''[[WesternAnimation/ShaggyAndScoobyDooGetAClue Shaggy & Scooby-Doo Get a Clue!]]'', which was almost universally hated by the fanbase because of its drastic changes in animation and formula and mostly how it was just plain different from the rest of the franchise.
** This has been going on with Scooby-Doo ever since Scrappy was added to the cast, and Velma, Daphne, and Fred were axed in 1980. ''[[WesternAnimation/APupNamedScoobyDoo A Pup Named Scooby-Doo]]'' also got a lot of flack back in the day, but is generally more accepted today.
* A lot of fans cried fool when Creator/DwayneMcDuffie, writer of ''WesternAnimation/JusticeLeagueCrisisOnTwoEarths'', said Superwoman--who traditionally is the MirrorUniverse version of Wonder Woman--was one of [[ComicBook/{{Shazam}} Mary Marvel]] and said an underling was WW's counterpart. But then, said movie's original form was to originally bridge the gap between ''WesternAnimation/JusticeLeague'' and ''Justice League Unlimited'' and a lot of fans felt Wondy did suffer from Adaptation Decay there. Kind of stupid when you realize that it was more inspired by the Creator/GrantMorrison story where Superwoman was Lois Lane. A number of Grant Morrison fans proclaimed that the movie was bad simply because it didn't adapt his arc panel for panel, despite only loosely borrowing from it.
* ''[[WesternAnimation/IronManArmoredAdventures Iron Man: Armored Adventures]]'' got some pretty heavy flack before the show even officially aired. The most common criticisms were that Tony Stark couldn't be Iron Man while he was still a teenager, and that the CGI animation sucks. Suffice it to say, most of the hate comes from [[ComplainingAboutShowsYouDontWatch fans who prefer the 90s series]].
* ''WesternAnimation/SouthPark'', where to start? There are fans that have long cried foul over the show's change in direction from its more surreal era to the political and current events-charged seasons, the changes in animation from more cartoony and crude violence to outright Gorn, and endless debates on whether or not these directions have worked. And then there are those that feel the show sucks due to the changes in female voice talent (which became a necessity due to Mary Kay Bergman's suicide): When Eliza Schneider left over a contractual dispute and her successor Creator/AprilStewart took the job, one particular faction has not been very amused.
** The "real" death of Kenny at the end of season 5 and his replacement by Butters in season 6 ignited flamewars on the official site's forums and elsewhere. Following Butters' replacement with Tweek, it led to another debate over whether the show "sucked" now for changing the dynamic. All seemed well when Kenny returned, until he got put OutOfFocus for Butters. [[spoiler: But they've still thrown Kenny fans a bone from time to time, what with his role as Mysterion.]]
* ''Franchise/TeenageMutantNinjaTurtles''! If it's not ''exactly'' like [[WesternAnimation/TeenageMutantNinjaTurtles1987 the '80s cartoon]] a large portion of the fandom instantly grab their torches and pitchforks and complain about how it isn't like the "original source material" despite the fact that the show had ''massive'' AdaptationDecay from [[ComicBook/TeenageMutantNinjaTurtlesMirage the Mirage comics]] ([[AdaptationDisplacement which, for the record,]] ''[[AdaptationDisplacement are]]'' [[AdaptationDisplacement the original source material!]]). The worst part is that when some adaptations ''try'' to be more like the comics ([[Film/TeenageMutantNinjaTurtles the first live-action film]], [[WesternAnimation/TeenageMutantNinjaTurtles2003 the 2003 series]], TMNT) they still get flak from fans saying it strayed too far from "the original" (that is, the '80s cartoon).
** There are also a lot of fans who are fully aware that the Mirage Comics are the original TMNT version, but they still wish newer incarnations to be similar to the 80's cartoon because the 80's cartoon is the version that introduced most people to the franchise, being much more popular in the mainstream than the original comics ever were.
** The character designs of [[WesternAnimation/TeenageMutantNinjaTurtles2012 the 2012 show]] drew a lot of ire, [[ComplainingAboutShowsYouDontWatch even though at the time the 2012 show had not aired yet]]!
* ''WesternAnimation/TheLooneyTunesShow'' is getting a lot of this, mostly due to the personality change of Bugs, Daffy, and a slew of the supporting characters almost completely from their original selves; as well as the sitcom(-esque) style the show has in comparison to the original cartoons. The different art style of the characters has also come under criticism, albeit to a lesser extent than the previous two.
** WordOfGod [[http://davealvarez.deviantart.com/journal/My-Looney-Tunes-video-is-on-Youtube-281966525?offset=20#comments stated that the second season would be intentionally be in a "semi-classic" format]], presumably as a result.
** ''WesternAnimation/LoonaticsUnleashed'' was and still is a victim of this. Kind of stupid as the characters are the WesternAnimation/LooneyTunes' descendants, so nothing was actually changed character-wise.
* Creator/JephLoeb announced that the second season of ''WesternAnimation/AvengersEarthsMightiestHeroes'' will contain 12 self-contained episodes. This stands in contrast to the fact the first season followed a serial format. Fans decided to hate these episodes [[ComplainingAboutShowsYouDontWatch before they even got to read synopses]].
** The addition of recaps to Creator/DisneyXD airings necessitated a trimming of the minute-long intro. This trimming resulted in the replacement of the EarWorm "Fight as One" with a speech by Nick Fury, as well as animation unique to the intro giving way to random episode clips. Fans wished for the reinstating of the longer opening, especially since Fury's speech sounds more like a promo for the movie ''Film/TheAvengers'' than a proper introduction to the cartoon, but the only consolation they received came when the last episodes of the first season came to DVD and Netflix with the theme song attached. Even then, Marvel probably attached it for consistency's sake, instead of fan appeasement.
** ExecutiveMeddling resulted in Franchise/{{Spider-Man}} getting redubbed. The lines that [[WesternAnimation/TheSpectacularSpiderMan Josh Keaton]] recorded for Spidey got replaced by readings courtesy of [[WesternAnimation/{{Ultimate Spider-Man}} Drake Bell]]. Never mind the possibility that Bell's performance sounds fine on its own standards; a number of fans consider at least one of Spidey's episodes tainted.
** There's now internet outrage over the news that ''Earth's Mightiest Heroes'' is ending and being replaced by a new show, ''WesternAnimation/AvengersAssemble''. Never mind that no unpromising footage or plot details have been released. Some fans just seem to hate it for not being season 3 of ''Earth's Mightiest Heroes''.
* ''Franchise/MyLittlePony'' fans did not treat the "Core 7" revision of the series nicely, especially when it came to Rainbow Dash; her accent changed, she became more generic instead of being a CoolBigSis to everyone, and her catchphrase changed. In general Pony fans don't like changes to the series. G2 is often passed up in people's minds, and G3.5 has a {{Hatedom}}.
** Season 2 of the [[WesternAnimation/MyLittlePonyFriendshipIsMagic G4 TV series]] has earned the vitriol of a pool of SliceOfLife fans who were attracted to the show by the post-two-parter Season 1 episodes, as it [[GodNeverSaidThat was believed to feature a recurring villain]] (a belief that turned out to be mistaken, unless schoolfilly Diamond Tiara returning from season 1 counts), the two-parter season premier is dark as heck (and the villain was not permanently destroyed and did not undergo a HeelFaceTurn until Season 3), and the [[ArsonMurderAndJaywalking E/I bug is missing]].
*** Some fans have become very cynical towards it now that Creator/LaurenFaust has left the show, with even the admins of one Pony forum (which will go unnamed) admitting they stopped watching it early in Season 2. There is no consensus amongst these fans as to ''what'' they think is wrong with the show now, other than that Faust is no longer in charge. This attitude mostly seems to appear amongst the earliest G4 fans, and given that the show's fanbase keeps growing it may be a case of ItsPopularNowItSucks.
** Season 3 of the show had the number of episodes cut in half, but still managed to become the most controversial season of the show (Season 2, now being considered by most S3 haters as part of the "Good Old Days" with S1). The fact that a part of the show's status quo (the spoiler hidden below) being changed in the season finale only being the cherry on the sundae for either side didn't help much either.
** Also, [[AscendedExtra Derpy Hooves]] in ''The Last Roundup'' after Hasbro modified her voice, changed her expression to be less cross-eyed and removed Rainbow Dash's reference to her as "Derpy" after a VocalMinority overreacted & complained about how her portrayal could be seen as offensive to persons with special needs. A good part of the issue was that while many fans liked Derpy, there weren't a uniting idea of her personality. Was she "ditzy with googly eyes, but otherwise fine", a female equivalent of [[WesternAnimation/EdEddNEddy Ed]], [[WesternAnimation/TheGrimAdventuresOfBillyAndMandy Billy]] or [[WesternAnimation/SpongeBobSquarePants Patrick]], or an actual pony with special needs? As is the major problem with canonizing fandom created/inspired characters, not everyone could be satisfied and the fandom started to eat each other.
** Alicorn Twilight Sparkle from the season 3 finale. If you're a brony and you thought the Derpygate controversy was bad... well, where to start? People have left the fanbase over it, others have threatened to do so, Lauren Faust (who, again, had nothing to do with this) got her Twitter flooded with people raging, and in general, the fandom has been thrown into an uproar the likes of which haven't been seen since [[TheDogShotFirst Han Shot First]]. The biggest complaint is that this will turn Twilight into a MarySue-type character... despite Meghan [=McCarthy=], the show's head writer saying that wouldn't happen, and that many of the alicorns seen on the show aren't quite as powerful as fans make them out to be, and have been shown weakened or defeated before (we're looking at you Cadance).
*** [[https://www.youtube.com/watch?v=nGv6vdCldrQ This is a pretty dead-on summation of the fanbase's reaction to Alicorn Twilight Sparkle.]]
*** So far, the fourth season has Twilight being nearly exactly the same as she was before. Ironically, this has caused a few complaints in the other direction. So little has changed that some fans are now asking what the point of the change was in the first place.
** ''[[WesternAnimation/MyLittlePonyEquestriaGirls Equestria Girls]]''. The fact that the Mane 6 are humans (and Spike is a dog). That they have skin tones matching their pony coat colors. That they're all going to be in high school. That they're all in dresses. That it's a kind of crossover with the main show. That it's a movie. That it might become a spinoff show. That, of all things, its intended demographic is for older girls and not the brony demographic (when the main show is mainly intended for young girls, but can be enjoyed by everyone, and the brony audience is outside its intended main demographic). It goes on and on... Has a bit of {{Irony}} and [[{{Hypocrite}} Hypocrisy]] to it since upon seeing the character designs, complaints erupted on how "Girly" the film is, and many Bronies are angry at haters for seeing the main show and assuming it is girly due to its name and character designs.
* Many ''WesternAnimation/VeggieTales'' fans reacted this way to the new intro theme, which cuts off a verse.
* ''Literature/{{Franklin}}'' fans reacted this way to the new AllCGICartoon.
* Many ''WesternAnimation/{{Recess}}'' fans reacted this way to Myles Jeffrey replacing Andrew Lawrence for the DTV movies (This was due to the latter's voice changing, though the former didn't even ''sound'' like him)
* ''WesternAnimation/{{Arthur}}'' gets this anytime a voice actor is replaced.
** Fans yelled this trope out loud when Oliver Grainger replaced the voice actor for D.W.
** The worst offender is Justin Bradley, chosen to voice Arthur in season 6, whose voice was deemed too "whiny" whenever Arthur got upset, stressed or mad. He was later replaced by Mark Randall for home video releases and airings in America.
** Cameron Ansell, Dallas Jokic and Drew Adkins are all criticized for sounding too female and more like D.W. than Arthur.
** Alex Hood's performance of Alan "The Brain" Powers was also criticized for being higher pitched and whinier than the past Brain's.
** The episodes produced by 9 Story Entertainment haven't been taken to very well. The animation is very cheap-looking and slow compared to the previous seasons, and fans [[TheScrappy really hate Ladonna]]. What's worse is that the animation was switched to AdobeFlash after a total of '''sixteen years''' of traditional.
* ''WesternAnimation/DanielTigersNeighborhood'' is getting this from both people who loved [[Series/MisterRogersNeighborhood the original series]] that pan its Flash animation ([[HateDumb The songs are Adobe Flash and the real series is mostly CGI, people!]]) and people who are aren't. Most of the comments range from "Mister Rogers is rolling in his grave" to "It's too cartoonish and hyper".
* ''WesternAnimation/{{Superjail}}'''s second season received quite a bit of this opinion from fans who weren't amused with the change in studios (Augenblick to Titmouse), nor the new animation or the change in writing format. Criticism ranged from the animation being ''too'' fluid and cartoony, the Warden becoming less sinister and more overtly childish, the writing being too wordy, and some feeling that the characters didn't need their backstories revealed.
** The confirmation of Alice being transgender (via her backstory) particularly pissed off a faction of fans that had hoped she wasn't, who even began citing it in reviews as the reason why the show was now ruined [[FanDumb (because now they could no longer "have fun guessing about her genitalia")]].
** The third season seemed to go over a little better with the fanbase, due to the staff's attempts at re-instating the wild angles and scene transitions within episodes. Although, there are those who continue to wish Augenblick would return to animating instead of Titmouse.
** There are the fans that see Warden as having fallen in characterization even as early as after the pilot, which they felt portrayed him in the darkest manner.
** The Twins becoming more visibly vulnerable, weaker, and [[OutOfFocus not as involved in trouble]] as much as they used to be is another change that's gone debated, some deeming the characters to have been ruined ever since they were confirmed to be aliens.
** While not a huge issue as far as criticisms were concerned, there was some annoyance about Kamala Sankaram and Melissa Brown not reprising their roles of Charise and Bruce for "Stingstress".
* The ''WesternAnimation/XiaolinShowdown'' revival, ''WesternAnimation/XiaolinChronicles'', got this before it premiered. Most of the complaints stem from the fact that show was revived in ''Canada'', meaning that nearly the entire cast with the exception of Omi and Katnappe had to get new voice actors. Another cause for complaint is the new names for the Shen Gong Wu, though the name change is justified due to the fact that the new producers of the show don't own the rights to the original Shen Gong Wu names. However, what is probably causing the most gripe with fans is the use of CGI in the showdowns, rather than the traditional 2D animation.
* ''WesternAnimation/TeenTitansGo'' is getting a lot of flak primarily for the show's switch to Flash animation and the fact that it's more of a sitcom in contrast to the [[WesternAnimation/TeenTitans original series]]. The fact that it (as well as ''WesternAnimation/BewareTheBatman'') came on the heels of the cancellation of '''both''' ''WesternAnimation/GreenLanternTheAnimatedSeries'' and ''WesternAnimation/YoungJustice'' has not done the show any favors. And then there's the removal of the story arcs...
* ''WesternAnimation/{{Pingu}}'', after its cancellation in 2007, was ScrewedByTheNetwork in Britain by using Canada's Pingu marathon, which used HOT Animation's work as the outer bits, and using the original Swiss episodes without credits...WITHOUT CREDITS... and redubbing it with Marc Silk narrating. This annoyed many fans, especially those who used to GagSub the episodes. They [[FandomBerserkButton will very quickly rage]] hearing Marc saying "Hello, Pingu!" or something. Some fans liked it better before Creator/HiTEntertainment bought the rights to said cartoon. Not that it needed narrating in the first place. What next? [[Series/{{Sherlock}} Jonathan Aris]] narrating ''WesternAnimation/TomAndJerry''?
* Some fans of ''WesternAnimation/StevenUniverse'' weren't happy when the show finally premiered and it carried a bit of a simpler art style than shown in the pilot and pre-release promo art.
* With the fourth season of ''WesternAnimation/TheBoondocks'' fans are starting to say this, because the season doesn't included the writing or direction of creator Aaron [=McGruder=]. Many claim his absence so far is very obvious as the clever social commentary and satire of the first three seasons are missing.
* ''WesternAnimation/StarWarsTheCloneWars'' (2008 series), while overall well-received by ''StarWars'' fans (including Original Trilogy fans who disliked the Prequels) sometimes gets this reaction from fans of the [[WesternAnimation/StarWarsCloneWars 2003 micro-series]] just for being CGI or not made by Creator/GenndyTartakovsky. It also gets this reaction from die-hard [[StarWarsExpandedUniverse Expanded Universe]] whenever the series contradicts ''anything'' established in previous EU material (Ryloth's climate, Asajj Ventress's origins, the changes to Mandalorian culture in that time period, etc.) and that this series is actually part of official canon (as well as the de-canonization of the rest of the old EU) is pouring salt on the wounds for those fans.
* Similarly ''WesternAnimation/StarWarsRebels'' is receiving this reaction from fans of ''[[WesternAnimation/StarWarsTheCloneWars The Clone Wars]]'' for allegedly being the reason that series was cancelled and fearing that it won't live up to the standards of or be as dark as its predecessor (despite having some of the same production staff, as well as Creator/GregWeisman as one of the directors) or suffer from ExecutiveMeddling on Disney's part [[ComplainingAboutShowsYouDontWatch when the show hasn't come out yet]]. Even after previews were released, some criticize it for having a different art style from its predecessor. There are also those that just hate it for being part of Disney's new ''StarWars'' canon, even when they hadn't produced any ''StarWars'' works created under their name yet.

!!In-Universe
* ''WesternAnimation/TheSimpsons'': It's done InUniverse in the episode "Beyond Blunderdome". Everyone liked the original ''Film/MrSmithGoesToWashington'' but Homer because Mel Gibson's character didn't use violence or action. Gibson actually AGREED with him, believing there was something wrong with the film despite the postive critical response. Once they changed the ending, everyone was in total disgust and booed at the new edit. (Well, that is unless you like beheading presidents, impaling evil senators with American flags, and killing everyone would the symbolism of anger.)
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